Community
Inventor Forum
Welcome to Autodesk’s Inventor Forums. Share your knowledge, ask questions, and explore popular Inventor topics.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Trouble creating Shell

2 REPLIES 2
SOLVED
Reply
Message 1 of 3
lebanese_all_star
1004 Views, 2 Replies

Trouble creating Shell

Hello,

 

I am having trouble shelling a part I have designed. Every time I try, with no matter what thickness, I get the following message:

 

"The attempted shell operation had non-manifold inputs. Try with manifold inputs."

 

I have no idea what this means, can anybody help?

 

I've attached a copy of the file

Tags (2)
2 REPLIES 2
Message 2 of 3

There are multiple issues with the model.

The serious issues are shown in red in attached image.

1. Extrusion 6 is sick and does not do anything - delete it.

2. Sliver face - Manage>Rebuild All gets rid of this (but never should have had it in the first place - dimension sketches and use symmetry).

 

3. Zoom way in on the smaller red circle - did you really intend for this triangular hole to go all the way through the part?

 

4. Shelling the entire part does not make logical sense.  Shell is global - I suspect your true design intent is to shell only part of the features.

 

non-critical issues

5. sketches aren't dimensioned - yet when I dimension Sketch1 it is perfect.  Why did you delete dimensions?

 

comedy and drama Version 2.jpg

 

6. You don't indicate what thickness you really really want.
7. You don't indcate what (or none) faces you want to remove with the shell.

 

BTW - you didn't need to create any workplanes - all of your sketches could have been created on Origin workplanes. (a more robust technique of modeling)


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


The CADWhisperer YouTube Channel


EESignature

Message 3 of 3
JDMather
in reply to: JDMather

Your sketches are a little rough.

Missing obvious tangencies.

 

Tangencies.png

 

I would use as few points in a spline as possible.

I often start with only two points and adjust Handles and Curvature to get my curve.

If I then need to add more nodes for more control - I add as needed.

Maintain tangency with other geometry.

 

Tip:  When shelling an entire part do Shell feature after first feature.

Then drag the Shell Feature below EOP and create next feature.

Drag EOP below shell to test.

Repeat for each feature.

This way you know when a problem is going to occure earliest in the design process.


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


The CADWhisperer YouTube Channel


EESignature

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums  

Autodesk Design & Make Report